Essays about: "nitrogen mineralisation"

Found 3 essays containing the words nitrogen mineralisation.

  1. 1. Identifying possible sources of ammonium ions and arsenic in groundwater in the Nam Du area, Vietnam

    University essay from SLU/Dept. of Soil Sciences

    Author : Peter Harms-Ringdahl; [2007]
    Keywords : groundwater; contamination sources; ammonium ions; arsenic species; redox potential; stable isotopes; Hanoi; Vietnam;

    Abstract : Concentrations of arsenic and ammonium ions well above drinking water standards have been detected in aquifers which supply Hanoi, the capital of Vietnam, with fresh water. Chemical analyses showed arsenic and ammonium ion concentrations varying between 27 – 264 μg/l in freshwater and 1.8 – 34.7 mg/l in groundwater. READ MORE

  2. 2. Nitrogen mineralization in a sludge-amended sandy clay loam in South Africa

    University essay from SLU/Dept. of Soil Sciences

    Author : Anna-Karin Mellin; [2005]
    Keywords : sewage sludge; nitrogen mineralisation; incubation; South Africa; soil; decomposition;

    Abstract : Sewage sludge is a solid, semi-solid or liquid byproduct produced by waste water treatment plants. It contains both compounds of agricultural value (e.g. organic material, nitrogen, phosphorous, potassium and to a lesser extent calcium, sulphur and magnesium), and pollutants (e. READ MORE

  3. 3. Grundvattensänkning till följd av järnvägstunnel genom Hallandsås : miljökonsekvenser relaterade till förändrad kväveomsättning i mark

    University essay from SLU/Dept. of Forest Soils

    Author : Susanna Olsson; [2000]
    Keywords : nitrat; läckage; Hallandsås; grundvattennivå; mineralisation; nitrifikation; inkubation;

    Abstract : This thesis was carried out to give some background information to a report of SLU (Swedish University of Agricultural Sciences) for the Swedish National Rail Administration (Banverket). The requested information was to provide basic data for an environmental impact assessment of the construction of the tunnel through Hallandsås. READ MORE